Ventilation of water closet bowls and seats



April 14, 1942. R. w. JOHNSON. ETAL 2,279,870

VENTILATION OF WATER CLOSET BOWLS AND SEATS Filed June '7, 1940 3 Sheets-Sheet 1 F Z INVENTO/ ?5' Roy H film-501;, W Jakmsan ATTJRNHQ April 14, 1942- R.,w. JOHNSON ET AL VENTILATION OF WATER CLOSET BOWLS AND SEATS Filed June '7, 1940 3 Sheets-Sheet 2 INVENTORJ floghzfiknmgwllm W 101m 6 on HTTURNEY April 14, 1942. R. w. JOHNSON ETAL 2,279,870

VENTILATION OF WATER CLOSET BOWLS AND SEATS Filed June 7, 1940 3 Sheets-Sheet s IAN [M70195 Patented Apr. 14, 1942 VENTILATION OF WATER CLOSET BOWLS AND SEATS Roy W. Johnson and William W. Johnson, Memphis, Tenn., assignors of one-fourth to David V. Johnson, Memphis, Tenn., and one fourth to Fred. W. Johnson, Jackson, Miss.

Application June '2, 1940, Serial No. assets 2' Claims.

operated, but in such prior art devices venting is only momentarily effective.

The primary object of the present invention is to provide a comparatively inexpensive, simple and thoroughly efiective device which will adequately ventilate the water closet during the entire period of use, and also when not in use.

A further object of the invention is to provide anovel device of the foregoing character which will adequately function entirely from the water closet seat through the medium of suitable vents.

With the above and other objects in view' that will become apparent as the nature of the invention is better understood, the same consists in general of certain novel details of construction and combination of parts hereinafter more fully described, illustrated in the accompanying drawings', and claimed.

In the accompanying drawings:

Figure 1 is a front elevational view of a water closet installation embodying the present invention, and showing separate vent pipes extending from the bowl and" seat to a single outlet pipe exhausting to the atmosphere,

Figure 2 is a side elevational View showing the vent pipe for the water closet bowl communi eating with the flush pipe connection between the reservoir or fiush tank and the bowl,

Figure 3 is a front elevational view showing a modified form of venting attachment for the water closet installation,

Figure 4 is a bottom plan view of the water closet seat with a single vent duct connection therewith,

Figure 5 is a top plan view of a water closet seat with a double or loop form of vent pipeconnection associated therewith, the cover or lid for the vent box being removed,

Figure 6 is a bottom plan View of the seat shown in Figure 5,

Figure '7 is a side elevational view of the seat and the associated vent pipe connections shown in Figures 5 and 6,

Figure 8 isa cross-sectional view taken online R-'---l'-l, of Figures 6 and7-,-

Figure 9is a cross-sectional View takenon lines S--SV of FiguresG and 7,

Figure 10 is a detail sectional view taken on line I0IIJ of Figure 5 with the cover or lid for the vent box in position thereon, and

Figure 11 is a side elevational view of the supporting post for the seat hinge.

As shown in Figures 1 to 3, the water closet installation comprises a hopper or bowl A having a flushing reservoir or tank B associated therewith through the medium of a flushing pipe connection E, the bowl" A being provided with a hingedly mounted seat D, while the usual sewer vent pipe is designated by the reference charact'er' C, all of the foregoing features being of standard construction with the exception of the hinged seat DD that forms a part of the present invention.

The hinged seat D is of channeled construction and'has air vents and ducts provided therein that extend into and through the hinged mounting for the seat and such seat construction is shown in detail in Figures- 4' to 9 and will be later described.

As shown in Figures 1 and 2, venting and induced draft devices are associated with the bowl and seat, the referencenumeral I designating a vertical vent pipedisposed rearwardl'y of the-bowl A andcarrying a-horizontal pipe section I at its lower end communicating with the hinged mounting I for the seat D' and into which hinged mounting the ventilating ducts in the seat extend. A second vertical ventilating pipe 2 adjacent to the pipe I has a lower horizontalsection .l communicating withthe flush pipe connection Eb'etween the flush tank B and the'bowl A. Metering devices 6 and 1 diagrammatically illustrated may be arranged in the ventilating pipes 2 and I adjacent their upper ends to eifect equalization of the desired ratio of draft through said pipes and, as shown more clearly in Figure 1,-

the upper ends of said pipes I and 2 merge as at 3 into a fan housing 3 having a fan therein operated by a motor 4'. The fan housing 3 carries a i ventilating stack pipe extension 5 1 that outlets through the roof of'the building for venting to the atmosphere; The motor@ may be manuallyor automatically operated through the medium of the light signalswitch 8 operatively connected to the motor as at 8*, these parts being schemaftically illustrated.

Induced draftieii'ected by thefan' in-the casingv 3 is present in theventilating pipe Z that com municates by means of the vent pipe 2 connecting the-flush" pipe E with'the flushing rim of the boxin any convenientnmanner.

tions' l0. overlie the channels I2 with the ,inner 175 water closet bowl A, or if desired, the vent pipe 2 may have direct communication with the flushing rim of the bowl A. In a like manner the fan in the casing 3 induces a draft through the vent pipe I that communicates at its lower end 5 with the channeled and vented seat D. When the fan is in operation increased ventilation of the bowl A and seat D is effected, and when the fan is out of operation, there is a natural up; draft through the vent pipes I and 2 to carry gases, etc., upwardly into the stack pipe. 5"for exhaust to the atmosphere, the ventilating ap;

paratus being operative at all times with the possible exception of the flushing period. of the bowl 7 with the ventilation during this permit being pro-I .15.

postsP-being engaged with and anchored to the vided by the usual sewer vent pipe C; I

It will be observed in Figures 1 and 2 that 'the ventilating pipes I and! communicate' withthe' Ian housing 3. It is also intended that the draft-- impeller may be confined to the vent pipe I as shown in Figure 3 with the pipe section-5 from the fan housing 3 havingganinjector connection withthe j stack pipe'iS-With which the j vent pipe 2 directly communicates to, create an induced' draft in thejvent pipe: that communicates with the flushing rim ofthe bowl as well as to create a direct suction in vent pipe )I when that type of 'installationis used. P I

Thedetaileddescription of the ventilated seat is illustrated in Figures 4; to 9-, Figure ,4'illustrating a single pipe connection between the seat D andthe ventilator pipe I, while'Figures .5to '7 show a loop form of pipeconnectionbetween, the seat D and the vent pipe I. I The ventilated seat construction'isthesame in,,bo th forms, the 351 only difference being in thepipe connection between-the'seat and ,theventilator pipe I-. As, shown in Figures 4 to 9, the seat D is of the split type comprising side seat) portions II, but it is toibe understood that theseat may comprise-an 40;

uninterrupted loop portion. The vent casing or box ;designated in generalby the reference character Z and being of T-shape is securely attached to the plate In and iorms'a part of the seat D, the cross head 9 of the vent-box Z and thearms of the plate I0 having the seat portions, D attached thereto while the leg of the T-shaped vent -box Z constitutes an elementofthe hinged mounting for the'seat. Theupper'side of the vent-box Z is closed by a cover or lid 9 that is 59 is intermediate thesideportions of the seatD,

as will at once be apparent from an'inspection of Figures 4' to 10, to provide an entrance opening or vent passage Satthe rear end of the seat D.

II of the seat D has a channel I2 formed therein between the side edges of'each of said side POI- tions, the rear ends of the channels communimating with the vent box- Z. A, series of spaced ducts I3 is formed at the inner side of each channel I2 and communicating with said chan'- I nels I2. An arcuate plate I0 is riveted or otheri e secured tothe bottom-face of each, side portion II; of the seat D,;the rear ends of the side plates Ill carrying a head or leg Ifl of generally T-formation to provide a base vfor the bot?; tomside of the T-shaped vent box -Z and'said head or leg Ill is suitably secured to said vent' The plate por-;

edges thereof spaced inwardly of the outer ends of the ducts [3 as shown in Figures 6 and 8 to provide entrance'openings to the channels I2 and vent box Z, while additional vent openings I4 are provided in the plates III in direct communication with the channels I2. The chamber within the vent box Z is braced by struts I5,l6 and I1 as clearly shown in Figure 5.

, The hinge mounting for the seat D includes a tube T extending across the leg of the T-shaped vent box Z and through the side walls of the leg with the projecting ends of the tube T extending the upper end, o fithe posts P that is of substantial eye-bolt formation, the threaded end of the bowl A the'usual manner. The tube T is anchored in "the'band G by means of set screws threaded through openings L in the bands and engaged with the tube. Flexible packings I9 are associated with the seat hinge .andiareinterbosed between the bands G andt-the sidejwalls'iof; the leg: of the T-shap'edwvent :box these flexible packings rendering the; bent boxvgas-tight and providing means for lubrication offthe seat. hingez As'shown in Figures'5-and:6,- the ,side wall of the tube T; is provided :with an alined series'of openings I8 forming communication be:

tweenthe interior ofithe'vent box and the tube.

The tube has conduit,ic0nnections with the ventilator ,pipe I,- packing nuts, 20 effecting a slip joint connection-betweenjthe tube T in the vent box Z and the conduit-connections between the tubeT andthe vent piper; 1 1 As shown in Figures 4and 6, the side plates; I0 and the ,T -s haped;headlll secured to the underside ofthe seat portionsI l carries a supportingcushion H that is engageable with the upper edge of the bowlA to createa more'eflective suction area in the top of the bowl, the cushion beingpreferably-in the form of vahalf roundhollow flexible tube cemented or otherwise secured to the underside-oithe plate I0 and beingso positioned as not; to yinterfer with the vent openings and'ducts in the under sideof the seat or. v

. In the form of invention-illustrated in Figure 4, the tube T in the hinged ventilator box Z of the seat has a -pipe-connection Ieextending between one end of the tubeand the ventilator pipe-I ,gthe connection being effected by the; nuts 20 and'22. The-otherend-of the tube T that projects outwardl of. .theventilator box- Z, and the band G, is closed by acap nut 2|, or in lieu of said' cap nut,;sai d end of the tube may be otherwise permanently closed. A

, The vent ducts I 3, and the ventilator holes I4 are augmented by the ventilator slot S shown in Figures', 6 and 10 so that substantially the en- The, bottom face of: each of the side portions tire; area within thebowl Ahas access to the ventilator box Z and the ventilatorpipe I.

I In the form of invention-illustrated in Figures 5 and- 6 each; end of the tube T projecting from the ventilator box Z and beyond the bands G has a loop. pipe connection with the ventilator pipe I by means of elbow tubing 2Q extending to a single a r e tha fi mm ni 'ei s; w t t vent pipe I and is secured tothe yent pipeby the nut 22 or byan L screwed onto the outward end of thepipezs- .1; 1,3: l o

E mi he b v ai ed. s r t n o h i 9 .it, bel ev d; h hee irl o an operation thereof will at once be apparent-it being noted that venting of the, toilet is accomplished through the bowl A thathas theiventpipe 00111180? tion 2 therewith, while additional venting is accomplished through the channeled seat D having the vent channels I2, the vent ducts I3, the vent openings I4, and the slot S in the bottom faces of the side portions II of the seat, and at the forward side of the vent box, the direction of flow of gases or the like being through the side portions of the seat rearwardly to the vent box and from the vent box by way of the openings I8 to enter the tube T and the pipe connections 25 to the vertical vent pipe I that leads to the stack 5, outletting through the roof of the building for exhaust to the' atmosphere. Draft induction through the pipe may be increased by the fan in the casing 3 effecting an augmented draft through both vent pipes I and 2 or the arrangement may 1 be as shown in Figure 3 with the fan element associated with the vent pipe I and with said vent pipe I having an injector connection with the stack 5 producing augmented draft in the vent pipe 2 as well as direct suction in the vent pipe I. It is also to be understood that any materials desired or method of construction may be employed in the manufacture of the ventilated toilet seat installation.

While there are herein shown and described the preferred embodiments of the invention, it is to be understood that minor changes may be made in the details of construction, such as will fall within the scope of the invention as claimed.

We claim:

1. In a ventilated toilet of the character described, in combination, a toilet bowl having a flushing rim, a hinged seat mounted on the bowl having vent openings and vent passages extending through the seat hinge, vent pipes connected with the bowl and seat hinge whereby a natural up-draft ventilation of the bowl and seat is had through the vent pipes, the vent pipe of the seat having an injector pipe connection at its upper end with the other vent pipe, said last named vent pipe communicating with an outlet stack pipe and an air impeller in the vent pipe associated with the seat.

2. In a ventilated toilet of the character described, in combination, a toilet bowl having a flushing rim, a seat mounted on the bowl having vent openings and vent passages therethrough, said seat comprising side arm portions, a vent box of T-shape with the side arm portions'of the seat attached to the ends of the cross-head of the T-shaped vent box, said vent box forming a hinge for the seat in communication with said vent openings and passages, said vent box having top and bottom walls with the top wall forwardly and downwardly arched over the central portion of the head thereof and terminating in spaced relation to the forward edge of the bottom wall and between the adjacent ends of the side arm portionsto provide an unobstructed inlet opening to the box between said side arm portions vent pipes respectively connected with the bowl and vent box, said vent box including a tube extending therethrough upon which the vent box is journaled, the tube within the box having openings in constant communicating with the box and mounting posts for the seat having bearings at their upper ends in which the ends of the tube are fixed.

ROY W. JOHNSON. WILLIAM W. JOHNSON. 

